爆轰流体力学模型敏感度分析与模型确认

发布时间：2018-04-26 16:57

本文选题：爆轰流体力学模型 + 不确定度量化　；参考：《物理学报》2017年11期

【摘要】：验证、确认与不确定度量化(VVUQ)是评估物理模型可信度和量化复杂工程数值模拟结果置信度的系统方法.验证是要回答数值模拟程序是否正确求解了物理模型和程序是否正确实施或给出求解模型的误差、不确定性大小及使用范围,确认是要通过数值结果回答物理模型是否反映了真实客观世界或反映真实客观世界的可信程度.文章围绕爆轰流体力学模型,剖析了模型中不确定性因素,给出了影响模拟结果不确定性的关键因素清单,并对其开展了敏感度分析,确认了模型的适应性.
[Abstract]:Verification, validation and uncertainty quantization (VVUQ) is a systematic method for evaluating the reliability of physical models and the confidence of numerical simulation results of complex engineering. Verification is to answer whether the numerical simulation program correctly solved the physical model and whether the program was correctly implemented or given the error, uncertainty and scope of use of the solution model. The confirmation is to answer whether the physical model reflects the real objective world or the degree of credibility of the real objective world through numerical results. Based on the detonation hydrodynamics model, the uncertain factors in the model are analyzed, the list of key factors influencing the uncertainty of simulation results is given, the sensitivity analysis is carried out, and the adaptability of the model is confirmed.
【作者单位】：北京应用物理与计算数学研究所;山东科技大学数学学院;
【基金】：国家自然科学基金(批准号:11372051,91630312,11475029) 中国工程物理研究院科学基金(批准号:2015B0202045) 山东省自然科学基金(批准号:ZR2015AQ001) 国防科工局国防基础科研计划(批准号:C1520110002)资助的课题~~
【分类号】：O35;O38

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